Rose plant-- Auswhite

ABSTRACT

A new variety of rose plant of the shrub class distinctive in its character by its fully double flowers of yellowish white with abundant, continual blooming and the unusual blend of colouring and shaping of the flower.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct variety of shrubrose, seedling resulting from a definite effort to produce animprovement in this class of roses.

BRIEF SUMMARY OF THE INVENTION

Primary features of this new variety which connote a distinctive advanceover existing types are the gross abundant and continual blooming takenwith the perfection of the fully double flowers of an old-fashioned,more particularly apparent in the accompanying illustration of aspecimen thereof.

BRIEF DESCRIPTION OF THE DRAWING

The drawing is a colour photographic representation of a new variety offlush of bloom taken substantially in side view and showinginflorescence in various stages, stems and foliage of the plant.

DETAILED BOTANICAL DESCRIPTION

The following is a detailed description of the new variety, colourterminology being in accordance with the "Methuen Handbook of Colour"published by Eyre Methuen Ltd (1963).

Variety denomination (in accordance with the UPOV Convention): Auswhite(Trade name The Swan).

Type: Hardy: bush; outdoor; seedling; for cut flowers and gardendecoration.

Class: Shrub.

Propagation: Holds its distinguishing characteristics through succeedingpropagations by budding.

The rose plant was grown at Albrighton, Nr. Wolverhampton, England andwas derived as follows:

Female parent (Seed parent): Charles Austin.

Male parent (Pollen parent): Seedling×Iceberg.

The operation of the artificial pollination is therefore expressed bythe following (Charles Austin×seedling×Iceberg).

The following observations are made of specimens grown outdoors inEngland.

Plant description:

Plant.--Height -- 140 cm. Habit -- Tall, strong, upright.

Branches:

Young stems.--Colour: Lettuce green 30D7 with red 9D8 shading onunderside. Texture: Glabrous, smooth, semi-shiny. Thorns: Veryoccasional.

Old stems.--Colour: Greenish white with pink tinge 30E8 Parrot green.Texture: glabrous, smooth, semi-shiny. Thorns: Occasional, 0-3 per node.Brownish red 10C7 fading to light yellow 4A4.

Leaves:

Stipules.--Length av. 25 mm. Width 4-6 mm. Angle of wingtips to petiole:80 slightly recurved towards stem. Margins: Minutely serrate withglandular hairs. Shape: Linear. Colour: 29D7 greyish green fading to 1B4greyish yellow midline.

Petiole:

General description.--Densely tometose when young, glabrous when old.

Groove/hairs/thorns.--Groove lined with red 10C8 tipped glandular hairs.

Young petiole.--Densely tometose.

Old petiole.--Glabrous.

Upperside color.--29E8 deep green.

Underside color.--29C6 greyish green.

Hair/thorns.--Occasional red 10C7 tip hairs. Occasionalpale/yellow/green thorns with brownish red tinge 7D8.

Leaflets.--Number: 3, 5 most often. 7. Shape: Oval with rounded base,cuspidate apex. Serration: Regularly serrate. Texture: Leathery.

General effect of foliage: Medium density, semi-glossy.

Colour:

Young foliage.--30E7 grass green with reddish brown 8D7 veins.Upperside: Capillaries and margin. Underside: 30D6 leaf green withreddish brown 8D8 veins, particularly pronounced towards margins.

Adult foliage.--Upperside: 28F 6/7 dark green. Underside: 29E 5/6greyish green.

Inflorescence:

Number of flowers per stem.--1-6, mainly 3.

Peduncle.--Length: Very variable 20-60 mm. Colour: 29D 6/7 greyishgreen. Thorns/hairs: red 10C8 tipped glandular hairs -- medium density.

Sepals.--Upperside colour: Greyish green 29D8 with red blush 10A4midline base and margins Outer margins: Ensiform protrusions and red 9B7glandular hairs. Inner margins: Tomentose. Underside colour: 29C7 applegreen. Texture: Inside, densely tometose. Sepal length: 25-30 mm. Budshape: Oval. Long pointed apex. Bud length: 30-40 mm. Max. width: 15-18mm before bud break. Colour when opening: Pale yellow/cream 4A3. Strewyellow 3B4 at base. Flower shape: As a flattened cap, rounded base,flattened top. Outer petals recurved towards the stem in mature flowers.Diameter: 75-100 mm.

Flower colour when blooming:

Outer petals.--Yellowish white 1A2, yellow 2A6 at base.

Upperside.--Inner petals -- pale yellow 2A3, deepening to pastel yellow3A4 and light yellow 3A5.

Outer petals.--Yellowish white 1A2.

Flower colour when opening:

Upperside.--Pale yellowish white 2A2 deepening towards centre and baseof petal to pale yellow 2A3.

Underside.--1A2 yellowish white 2A2 deepening to pale yellow 2A3 atbase.

Flower colouring when finished blooming:

Upperside.--Outer petals: yellowish white 1A2 yellow at base. Margins ofouter petals brown 6D6 and shrivelling. Inner petals: pale yellowishwhite 2A2, light yellow at base 2A5.

Underside.--Yellowish white 1A2.

Length of blooming season in location of production: End of June tobeginning of October.

Fragrance: Very slight.

Lasting quality: Good lasts for 14-18 days left on the bush and for cutflowers 13-16 days.

Petals:

Shape.--Outside: Generally round with mucronate apex and base. Inside:Oval with mucronate apex and cuneate base.

Texture.--Firm

Number.--About 90.

Cleaning.--Good.

Stamens:

Number.--90-100 numerous.

Anthers.--Normal, Bright Yellow 3A8.

Filaments.--Yellowish 3A5, of irregular heights.

Pistils:

Number.--Numerous.

Stigmas.--Normal, strew coloured 3B4.

Styles.--Greenish 30A5, outer styles have fuchsive top, irregularheights.

Receptable:

Colour.--Greyish green 30D6.

Texture.--Glabrous, dull.

Size.--Length 10 mm×max width 12 mm.

Shape.--Goblet shaped in longitudinal section.

General effect of foilage: Medium density, semi-glossy.

Colour.--Young foliage: Upperside: 30E7 grass green with reddish brown8D8 veins, capillaries and margin. Underside: 30D6 leaf green withreddish brown 8D8 veins-particularly pronounced towards margins. Adultfoilage: Upperside: 28F 6/7 dark green. Underside: 29E 5/6 greyishgreen.

The development:

Vegetation.--vigorous.

Blooming.--Abundant and continual.

Aptitude to bear fruits.--None.

Resistance to frost.--Good.

Resistance to disease.--Good.

I claim:
 1. A new and distinct variety of rose plant of the shrub classcharacterised as to novelty by its fully double flowers of yellowishwhite with abundant continual blooming and the unusual blend ofcolouring and shaping of the flower being substantially as shown anddescribed.